Bibliographic Details
| Title: |
Genomes of diverse Actinidia species provide insights into cis-regulatory motifs and genes associated with critical traits. |
| Authors: |
Li, Xiaolong1,2 (AUTHOR), Huo, Liuqing1,2 (AUTHOR), Li, Xinyi1,2 (AUTHOR), Zhang, Chaofan3 (AUTHOR), Gu, Miaofeng1,2 (AUTHOR), Fan, Jialu4 (AUTHOR), Xu, Changbin1,2 (AUTHOR), Gong, Jinli1,2 (AUTHOR), Hu, Xiaoli1,2 (AUTHOR), Zheng, Yi4 (AUTHOR), Sun, Xuepeng1,2 (AUTHOR) xs57@zafu.edu.cn |
| Source: |
BMC Biology. 9/11/2024, Vol. 22 Issue 1, p1-16. 16p. |
| Subject Terms: |
*GENE families, *COMPARATIVE genomics, *PAN-genome, *VITAMIN C, *FRUIT development, *KIWIFRUIT |
| Abstract: |
Background: Kiwifruit, belonging to the genus Actinidia, represents a unique fruit crop characterized by its modern cultivars being genetically diverse and exhibiting remarkable variations in morphological traits and adaptability to harsh environments. However, the genetic mechanisms underlying such morphological diversity remain largely elusive. Results: We report the high-quality genomes of five Actinidia species, including Actinidia longicarpa, A. macrosperma, A. polygama, A. reticulata, and A. rufa. Through comparative genomics analyses, we identified three whole genome duplication events shared by the Actinidia genus and uncovered rapidly evolving gene families implicated in the development of characteristic kiwifruit traits, including vitamin C (VC) content and fruit hairiness. A range of structural variations were identified, potentially contributing to the phenotypic diversity in kiwifruit. Notably, phylogenomic analyses revealed 76 cis-regulatory elements within the Actinidia genus, predominantly associated with stress responses, metabolic processes, and development. Among these, five motifs did not exhibit similarity to known plant motifs, suggesting the presence of possible novel cis-regulatory elements in kiwifruit. Construction of a pan-genome encompassing the nine Actinidia species facilitated the identification of gene DTZ79_23g14810 specific to species exhibiting extraordinarily high VC content. Expression of DTZ79_23g14810 is significantly correlated with the dynamics of VC concentration, and its overexpression in the transgenic roots of kiwifruit plants resulted in increased VC content. Conclusions: Collectively, the genomes and pan-genome of diverse Actinidia species not only enhance our understanding of fruit development but also provide a valuable genomic resource for facilitating the genome-based breeding of kiwifruit. [ABSTRACT FROM AUTHOR] |
|
Copyright of BMC Biology is the property of BioMed Central and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) |
| Database: |
Academic Search Complete |
|
Full text is not displayed to guests. |
Login for full access.
|
